Yamaha Outboards

To obtain long product life, Yamaha strongly recommends that the specified periodic checks and maintenance be performed, according to the maintenance interval chart.

If replacement parts are necessary, use only genuine Yamaha parts of equivalent design and quality. Any parts of inferior quality may cause a malfunction, and the resulting loss of control could endanger the operator and passengers. Yamaha genuine parts and accessories are available from Yamaha dealers.

The service intervals provided in the following maintenance charts are based upon "typical" operating conditions that include speed variations, sufficient time for engine warm up and cool-down, medium to light load, and an average cruising speed in the 3000 to 4000 r/min range. If your normal operating conditions are more intensive, more frequent servicing will be required, especially the engine oil and gear oil changes. Examples of the intensive operations will be: wide-open-throttle, trolling, or idling operation for extended periods of time, carrying heavy loads, and frequent starting and stopping or shifting. In most cases, the frequent maintenance pays off in increased engine life and greater owner satisfaction. Consult a Yamaha dealer for additional recommendations.

The maintenance cycle on these charts assumes usage of 100 hours per year and regular flushing of the cooling water passages. Adjust the maintenance frequency when operating the engine under adverse conditions, such as extended trolling.

Dis-assembly or repairs may be necessary depending on the outcome of maintenance checks.

Expendable or consumable parts and lubricants will lose their effectiveness over time and through normal usage regardless of the warranty period.

When operating the outboard motor in salt water, or in muddy, turbid (cloudy), or acidic water, flush the engine using clean water after each use.